418 MR. G. F. ANGAS ON NEW SHELLS. [May 6, 



white towards the base, and faintly rayed with darker chestnut, the 

 rays forming a sort of band anteriorly, which ceases somewhat ab- 

 ruptly towards the white margin, whilst at the umbones the chestnut 

 rays take the form of zigzag markings ; valves sculptured with very 

 minute close-set radiating strise, crossed by fine, irregular, somewhat 

 laminate strise, and towards the middle of the valves by concentric 

 waving impressed lines that give the shell a somewhat wrinkled ap- 

 pearance ; umbones central, tumid, a little incurved anteriorly ; cardi- 

 nal area narrow ; interior of valves white ; margins strongly crenate. 



Long. 18, alt. 18, lat. 11 lin. 



Hab. New Caledonia. Coll. Hanley. 



3. Axin.ea hanleyi, ii. sp. (Plate XXXV. fig. 3.) 



Shell solid, triangularly ovate, angled and compressed anteriorly, 

 ventricose ; pale orange, darker at the sides and towards the base, 

 very beautifully painted with small, irregular, triangular chestnut lines 

 that pass into confused descending rays towards the base, and with 

 larger triangular white spots here and there, especially near the an- 

 terior margin, where they form a kind of broken white band descend- 

 ing from the umbones, and marked with two or three zigzag dark 

 purple lines ; valves sculptured with fine, regular, close-set, descend- 

 ing raised striae, more distant towards the anterior area, and crossed 

 by minute concentric ridges ; umbones very tumid ; cardinal area short 

 and deep ; interior of the valves white, spotted with dark purple 

 anteriorly ; margins strongly crenate. 



Long. 14, alt. 15, lat. 10 lin. 



Hab. Unknown. Coll. Hanley. 



4. Axin^ea modesta, n. sp. (Plate XXXV. fig. 4.) 



Shell solid, somewhat obliquely ovate convex, slightly subangulate 

 anteriorly, equivalve ; whitish, faintly marked with numerous indistinct 

 pale-brown angular line.*, with here and there a very few descending 

 straight chestnut markings towards the base anteriorly ; valves sculp- 

 tured with fine close-set elevated striae, less numerous towards the 

 umbones, and crossed with a few very minute concentric striae, and 

 with strongly marked lines of growth that have a frilled appearance 

 towards the ventral margin, which is clothed with a short brief epi- 

 dermis ; cardinal area small ; umbones incurved anteriorly, brown, 

 tinged with livid blue ; interior of valves pale yellow, with a dark 

 purple stain in front ; margins crenate. 



Long. 8g, alt. 9, lat. 5 lin. 



Hab. Australia. Coll. Hanley. 



5. Axin^ea sella, u. sp. (Plate XXXV. fig. .0.) 



Shell moderately solid, suborbicular, a little convex, subequilateral, 

 equivalve ; white, with pale yellowish brown arrow-shaped markings 

 towards the centre of the valves, and with longitudinal patches and 

 splashes of dark purplish brown, larger and more numerous towards 

 the base ; valves sculptured throughout with fine close-set raised 

 strise which are crossed by very delicate thread-like concentric lines ; 

 cardinal area small and narrow ; umbones nearly approximate, livid 



